1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //-----------------------------------------------------------------------------
19 /// \class AliMUONRecoCheck
20 /// Utility class to check reconstruction
21 /// Reconstructed tracks are compared to reference tracks.
22 /// The reference tracks are built from AliTrackReference for the
23 /// hit in chamber (0..9) and from kinematics for the vertex parameters.
24 //-----------------------------------------------------------------------------
27 // Added a method to create a list of reconstructed AliMUONTrack objects from
28 // ESD data. This is necessary since the track objects that are actually created
29 // during offline reconstruction are no longer stored to disk.
30 // - Artur Szostak <artursz@iafrica.com>
32 // Use the new ESDInterface to create MUON objects from ESD data
36 #include "AliMUONRecoCheck.h"
37 #include "AliMUONTrack.h"
38 #include "AliMUONVTrackStore.h"
39 #include "AliMUONVCluster.h"
40 #include "AliMUONVClusterStore.h"
41 #include "AliMUONConstants.h"
42 #include "AliMUONESDInterface.h"
43 #include "AliMUONTrackParam.h"
44 #include "AliMUONTriggerTrack.h"
45 #include "AliMUONVTriggerTrackStore.h"
46 #include "AliMUONTriggerStoreV1.h"
47 #include "AliMUONLocalTrigger.h"
48 #include "AliMCEventHandler.h"
49 #include "AliMCEvent.h"
51 #include "AliTrackReference.h"
53 #include "AliESDEvent.h"
54 #include "AliESDMuonTrack.h"
55 #include "AliMUONDigitStoreV2S.h"
56 #include "AliMUONDigit.h"
57 #include "AliMpVSegmentation.h"
58 #include "AliMpSegmentation.h"
61 #include "AliGeomManager.h"
62 #include "AliCDBManager.h"
64 #include "AliMpDDLStore.h"
65 #include "AliMUONCDB.h"
66 #include "AliMUONGeometryTransformer.h"
67 #include "AliMUONTriggerCircuit.h"
68 #include "AliMUONVTrackReconstructor.h"
69 #include "AliMUONVTriggerStore.h"
70 #include "AliMUONCalibrationData.h"
71 #include "AliMUONTriggerElectronics.h"
74 #include "TGeoManager.h"
78 #include <TParticle.h>
79 #include <TParticlePDG.h>
80 #include <Riostream.h>
82 #include "AliMUONRecoCheck.h"
85 ClassImp(AliMUONRecoCheck)
88 //_____________________________________________________________________________
89 AliMUONRecoCheck::AliMUONRecoCheck(const Char_t *esdFileName, const Char_t *pathSim)
91 fMCEventHandler(new AliMCEventHandler()),
92 fESDEvent(new AliESDEvent()),
97 fRecoTrackRefStore(0x0),
98 fRecoTriggerRefStore(0x0),
100 fRecoTriggerTrackStore(0x0),
101 fGeometryTransformer(0x0),
102 fTriggerCircuit(0x0),
103 fCalibrationData(0x0),
104 fTriggerElectronics(0x0),
105 fESDEventOwner(kTRUE)
109 // TrackRefs and Particules
110 fMCEventHandler->SetInputPath(pathSim);
111 fMCEventHandler->InitIO("");
114 fESDFile = TFile::Open(esdFileName); // open the file
115 if (!fESDFile || !fESDFile->IsOpen()) {
116 AliError(Form("opening ESD file %s failed", esdFileName));
120 fESDTree = (TTree*) fESDFile->Get("esdTree"); // get the tree
122 AliError("no ESD tree found");
127 fESDEvent->ReadFromTree(fESDTree); // link fESDEvent to the tree
130 //_____________________________________________________________________________
131 AliMUONRecoCheck::AliMUONRecoCheck(AliESDEvent *esdEvent, AliMCEventHandler *mcEventHandler)
139 fRecoTrackRefStore(0x0),
140 fRecoTriggerRefStore(0x0),
141 fRecoTrackStore(0x0),
142 fRecoTriggerTrackStore(0x0),
143 fGeometryTransformer(0x0),
144 fTriggerCircuit(0x0),
145 fCalibrationData(0x0),
146 fTriggerElectronics(0x0),
147 fESDEventOwner(kFALSE)
151 // TrackRefs and Particules
152 fMCEventHandler = mcEventHandler;
155 fESDEvent = esdEvent;
158 //_____________________________________________________________________________
159 AliMUONRecoCheck::~AliMUONRecoCheck()
162 if (fESDEventOwner) {
163 delete fMCEventHandler;
165 if (fESDFile) fESDFile->Close();
168 delete fGeometryTransformer;
169 delete fTriggerCircuit;
170 delete fTriggerElectronics;
171 delete fCalibrationData;
174 //_____________________________________________________________________________
175 void AliMUONRecoCheck::ResetStores()
177 /// Deletes all the store objects that have been created and resets the pointers to 0x0
178 delete fTrackRefStore; fTrackRefStore = 0x0;
179 delete fRecoTrackRefStore; fRecoTrackRefStore = 0x0;
180 delete fRecoTriggerRefStore; fRecoTriggerRefStore = 0x0;
181 delete fRecoTrackStore; fRecoTrackStore = 0x0;
182 delete fRecoTriggerTrackStore; fRecoTriggerTrackStore = 0x0;
185 //_____________________________________________________________________________
186 Bool_t AliMUONRecoCheck::InitCircuit()
189 if ( fTriggerCircuit ) return kTRUE;
191 if ( ! InitGeometryTransformer() ) return kFALSE;
193 fTriggerCircuit = new AliMUONTriggerCircuit(fGeometryTransformer);
195 // reset tracker for local trigger to trigger track conversion
196 if ( ! AliMUONESDInterface::GetTracker() )
197 AliMUONESDInterface::ResetTracker();
203 //_____________________________________________________________________________
204 Int_t AliMUONRecoCheck::GetRunNumber()
206 /// Return the run number of the current ESD event
208 if (fESDEventOwner && fRecoTrackStore == 0x0 && fRecoTriggerTrackStore == 0x0) {
209 if (!fESDTree || fESDTree->GetEvent(fCurrentEvent) <= 0) {
210 AliError(Form("fails to read ESD object for event %d: cannot get the run number",fCurrentEvent));
215 return fESDEvent->GetRunNumber();
218 //_____________________________________________________________________________
219 Int_t AliMUONRecoCheck::NumberOfEvents() const
221 /// Return the number of events
222 if (fESDEventOwner && fESDTree) return fESDTree->GetEntries();
226 //_____________________________________________________________________________
227 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event, Bool_t refit)
229 /// Return a track store containing the reconstructed tracks (converted into
230 /// MUONTrack objects) for a given event.
231 /// Track parameters at each clusters are computed or not depending on the flag "refit".
232 /// If not, only the track parameters at first cluster are valid.
234 if (!fESDEventOwner) {
235 if (fRecoTrackStore == 0x0) MakeReconstructedTracks(refit);
236 return fRecoTrackStore;
239 if (event != fCurrentEvent) {
241 fCurrentEvent = event;
244 if (fRecoTrackStore != 0x0) return fRecoTrackStore;
246 if (!fESDTree) return 0x0;
247 if (fESDTree->GetEvent(event) <= 0) {
248 AliError(Form("fails to read ESD object for event %d", event));
251 MakeReconstructedTracks(refit);
252 return fRecoTrackStore;
257 //_____________________________________________________________________________
258 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggeredTracks(Int_t event)
260 /// Return a track store containing the reconstructed trigger tracks (converted into
261 /// MUONTriggerTrack objects) for a given event.
263 if (!fESDEventOwner) {
264 if (fRecoTriggerTrackStore == 0x0) MakeTriggeredTracks();
265 return fRecoTriggerTrackStore;
268 if (event != fCurrentEvent) {
270 fCurrentEvent = event;
273 if (fRecoTriggerTrackStore != 0x0) return fRecoTriggerTrackStore;
275 if (!fESDTree) return 0x0;
276 if (fESDTree->GetEvent(event) <= 0) {
277 AliError(Form("fails to read ESD object for event %d", event));
280 MakeTriggeredTracks();
281 return fRecoTriggerTrackStore;
286 //_____________________________________________________________________________
287 AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event)
289 /// Return a track store containing the track references (converted into
290 /// MUONTrack objects) for a given event
292 if (!fESDEventOwner) {
293 if (fTrackRefStore == 0x0) MakeTrackRefs();
294 return fTrackRefStore;
297 if (event != fCurrentEvent) {
299 fCurrentEvent = event;
302 if (fTrackRefStore != 0x0) return fTrackRefStore;
304 if (!fMCEventHandler->LoadEvent(event)) {
305 AliError(Form("fails to read MC objects for event %d", event));
309 return fTrackRefStore;
313 //_____________________________________________________________________________
314 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggerableTracks(Int_t event)
316 /// Return a trigger track store containing the triggerable track references (converted into
317 /// AliMUONTriggerTrack objects) for a given event
319 if (!fESDEventOwner) {
320 if (fRecoTriggerRefStore == 0x0) MakeTriggerableTracks();
321 return fRecoTriggerRefStore;
324 if (event != fCurrentEvent) {
326 fCurrentEvent = event;
329 if (fRecoTriggerRefStore != 0x0) return fRecoTriggerRefStore;
331 if (!fMCEventHandler->LoadEvent(event)) {
332 AliError(Form("fails to read MC objects for event %d", event));
335 MakeTriggerableTracks();
336 return fRecoTriggerRefStore;
341 //_____________________________________________________________________________
342 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event, UInt_t requestedStationMask,
343 Bool_t request2ChInSameSt45, Bool_t hitInFrontOfPad)
345 /// Return a track store containing the reconstructible tracks for a given event,
346 /// according to the mask of requested stations and the minimum number of chambers hit in stations 4 & 5.
348 if (!fESDEventOwner) {
349 if (fRecoTrackRefStore == 0x0) {
350 if (TrackRefs(event) == 0x0) return 0x0;
351 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
353 return fRecoTrackRefStore;
356 if (event != fCurrentEvent) {
358 fCurrentEvent = event;
361 if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore;
363 if (TrackRefs(event) == 0x0) return 0x0;
364 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
365 return fRecoTrackRefStore;
370 //_____________________________________________________________________________
371 void AliMUONRecoCheck::MakeReconstructedTracks(Bool_t refit)
373 /// Make reconstructed tracks
374 if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return;
376 // loop over all reconstructed tracks and add them to the store (skip ghosts)
377 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
378 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
379 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
380 if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(*esdTrack, *fRecoTrackStore, refit);
386 //_____________________________________________________________________________
387 void AliMUONRecoCheck::MakeTriggeredTracks()
389 /// Make reconstructed trigger tracks
390 if (!(fRecoTriggerTrackStore = AliMUONESDInterface::NewTriggerTrackStore())) return;
392 AliMUONVTriggerStore* tmpTriggerStore = AliMUONESDInterface::NewTriggerStore();
393 if ( ! tmpTriggerStore ) return;
395 // loop over all reconstructed tracks and add them to the store (include ghosts)
396 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
397 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
398 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
399 if (esdTrack->ContainTriggerData()) AliMUONESDInterface::Add(*esdTrack, *tmpTriggerStore);
402 if ( InitCircuit() ) {
404 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
405 tracker->EventReconstructTrigger(*fTriggerCircuit, *tmpTriggerStore, *fRecoTriggerTrackStore);
408 delete tmpTriggerStore;
411 //_____________________________________________________________________________
412 void AliMUONRecoCheck::TriggerToTrack(const AliMUONLocalTrigger& locTrg, AliMUONTriggerTrack& triggerTrack)
414 /// Make trigger track from local trigger info
415 if ( ! InitCircuit() ) return;
416 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
417 tracker->TriggerToTrack(*fTriggerCircuit, locTrg, triggerTrack);
421 //_____________________________________________________________________________
422 void AliMUONRecoCheck::MakeTrackRefs()
424 /// Make reconstructible tracks
425 AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore();
426 if (!tmpTrackRefStore) return;
428 Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum;
430 TClonesArray* trackRefs;
431 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
432 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
434 // loop over simulated tracks
435 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
436 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
438 // skip empty trackRefs
439 if (nHits < 1) continue;
441 // get the particle charge for further calculation
442 TParticlePDG* ppdg = particle->GetPDG();
443 Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0;
447 // loop over simulated track hits
448 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
449 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
451 // skip trackRefs not in MUON
452 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
454 // Get track parameters of current hit
455 x = trackReference->X();
456 y = trackReference->Y();
457 z = trackReference->Z();
458 pX = trackReference->Px();
459 pY = trackReference->Py();
460 pZ = trackReference->Pz();
462 // check chamberId of current trackReference
463 Int_t detElemId = trackReference->UserId();
464 Int_t chamberId = detElemId / 100 - 1;
465 if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue;
467 // set hit parameters
468 hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, detElemId, iHit));
470 hit->SetErrXY(0.,0.);
472 // compute track parameters at hit
475 inverseBendingMomentum = 0;
476 if (TMath::Abs(pZ) > 0) {
477 bendingSlope = pY/pZ;
478 nonBendingSlope = pX/pZ;
480 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
481 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
482 inverseBendingMomentum *= charge;
484 // set track parameters at hit
485 AliMUONTrackParam trackParam;
486 trackParam.SetNonBendingCoor(x);
487 trackParam.SetBendingCoor(y);
489 trackParam.SetBendingSlope(bendingSlope);
490 trackParam.SetNonBendingSlope(nonBendingSlope);
491 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
493 // add track parameters at current hit to the track
494 track.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
497 // if none of the track hits was in MUON, goto the next track
498 if (track.GetNClusters() < 1) continue;
500 // get track parameters at particle's vertex
508 // compute rest of track parameters at particle's vertex
511 inverseBendingMomentum = 0;
512 if (TMath::Abs(pZ) > 0) {
513 bendingSlope = pY/pZ;
514 nonBendingSlope = pX/pZ;
516 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
517 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
518 inverseBendingMomentum *= charge;
520 // set track parameters at particle's vertex
521 AliMUONTrackParam trackParamAtVertex;
522 trackParamAtVertex.SetNonBendingCoor(x);
523 trackParamAtVertex.SetBendingCoor(y);
524 trackParamAtVertex.SetZ(z);
525 trackParamAtVertex.SetBendingSlope(bendingSlope);
526 trackParamAtVertex.SetNonBendingSlope(nonBendingSlope);
527 trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum);
529 // add track parameters at vertex
530 track.SetTrackParamAtVertex(&trackParamAtVertex);
533 track.SetUniqueID(iTrackRef);
534 tmpTrackRefStore->Add(track);
537 CleanMuonTrackRef(tmpTrackRefStore);
540 delete tmpTrackRefStore;
543 //_____________________________________________________________________________
544 void AliMUONRecoCheck::MakeTriggerableTracks()
546 /// Make triggerable tracks
547 if (!(fRecoTriggerRefStore = AliMUONESDInterface::NewTriggerTrackStore()))
550 Double_t x, y, z, slopeX, slopeY, pZ, xLoc, yLoc, zLoc;
552 TClonesArray* trackRefs;
553 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
555 // loop over simulated tracks
556 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
557 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
559 // skip empty trackRefs
560 if (nHits < 1) continue;
562 AliMUONTriggerTrack track;
563 AliMUONDigitStoreV2S digitStore;
564 Int_t hitsOnTrigger = 0;
567 // loop over simulated track hits
568 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
569 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
571 // skip trackRefs not in MUON
572 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
574 // check chamberId of current trackReference
575 Int_t detElemId = trackReference->UserId();
576 Int_t chamberId = detElemId / 100 - 1;
577 if (chamberId < AliMUONConstants::NTrackingCh() || chamberId >= AliMUONConstants::NCh() ) continue;
579 // Get track parameters of current hit
580 x = trackReference->X();
581 y = trackReference->Y();
582 z = trackReference->Z();
584 if ( InitTriggerResponse() ) {
585 fGeometryTransformer->Global2Local(detElemId, x, y, z, xLoc, yLoc, zLoc);
588 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
590 const AliMpVSegmentation* seg
591 = AliMpSegmentation::Instance()
592 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
594 AliMpPad pad = seg->PadByPosition(xLoc,yLoc,kFALSE);
595 Int_t ix = pad.GetIx();
596 Int_t iy = pad.GetIy();
598 if ( !pad.IsValid() ) continue;
600 if ( cath == AliMp::kCath0 ) nboard = pad.GetLocalBoardId(0);
602 AliMUONDigit* digit = new AliMUONDigit(detElemId,nboard,
603 pad.GetLocalBoardChannel(0),cath);
604 digit->SetPadXY(ix,iy);
605 digit->SetCharge(1.);
606 digitStore.Add(*digit,AliMUONVDigitStore::kDeny);
610 if ( hitsOnTrigger == 0 ) {
611 pZ = trackReference->Pz();
612 slopeX = ( pZ == 0. ) ? 99999. : trackReference->Px() / pZ;
613 slopeY = ( pZ == 0. ) ? 99999. : trackReference->Py() / pZ;
618 track.SetSlopeX(slopeX);
619 track.SetSlopeY(slopeY);
622 if ( currCh != chamberId ) {
629 if ( hitsOnTrigger < 3 ) continue;
631 // Check if the track passes the trigger algorithm
632 if ( InitTriggerResponse() ) {
633 AliMUONTriggerStoreV1 triggerStore;
634 fTriggerElectronics->Digits2Trigger(digitStore,triggerStore);
636 TIter next(triggerStore.CreateIterator());
637 AliMUONLocalTrigger* locTrg(0x0);
639 Int_t ptCutLevel = 0;
641 while ( ( locTrg = static_cast<AliMUONLocalTrigger*>(next()) ) )
643 if ( locTrg->IsTrigX() && locTrg->IsTrigY() )
645 ptCutLevel = TMath::Max(ptCutLevel, 1);
646 if ( locTrg->LoHpt() ) ptCutLevel = TMath::Max(ptCutLevel, 3);
647 else if ( locTrg->LoLpt() ) ptCutLevel = TMath::Max(ptCutLevel, 2);
649 } // end of loop on Local Trigger
650 track.SetPtCutLevel(ptCutLevel);
652 track.SetUniqueID(iTrackRef);
653 fRecoTriggerRefStore->Add(track);
658 //_____________________________________________________________________________
659 void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore)
661 /// Re-calculate hits parameters because two AliTrackReferences are recorded for
662 /// each chamber (one when particle is entering + one when particle is leaving
663 /// the sensitive volume)
664 if (!(fTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
666 Double_t maxGasGap = 1.; // cm
667 Double_t x, y, z, pX, pY, pZ, x1, y1, z1, pX1, pY1, pZ1, z2;
668 Double_t bendingSlope,nonBendingSlope,inverseBendingMomentum;
669 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
672 TIter next(tmpTrackRefStore->CreateIterator());
674 // loop over tmpTrackRef
676 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
678 AliMUONTrack newTrack;
680 // loop over tmpTrackRef's hits
682 Int_t nTrackHits = track->GetNClusters();
683 while (iHit1 < nTrackHits) {
684 AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1);
686 // get track parameters at hit1
687 x1 = trackParam1->GetNonBendingCoor();
688 y1 = trackParam1->GetBendingCoor();
689 z1 = trackParam1->GetZ();
690 pX1 = trackParam1->Px();
691 pY1 = trackParam1->Py();
692 pZ1 = trackParam1->Pz();
694 // prepare new track parameters
702 // loop over next tmpTrackRef's hits
703 Int_t nCombinedHits = 1;
704 for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) {
705 AliMUONTrackParam *trackParam2 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit2);
707 // get z position of hit2
708 z2 = trackParam2->GetZ();
710 // complete new track parameters if hit2 is on the same detection element
711 if ( TMath::Abs(z2-z1) < maxGasGap ) {
712 x += trackParam2->GetNonBendingCoor();
713 y += trackParam2->GetBendingCoor();
715 pX += trackParam2->Px();
716 pY += trackParam2->Py();
717 pZ += trackParam2->Pz();
724 // finalize new track parameters
725 x /= (Double_t)nCombinedHits;
726 y /= (Double_t)nCombinedHits;
727 z /= (Double_t)nCombinedHits;
728 pX /= (Double_t)nCombinedHits;
729 pY /= (Double_t)nCombinedHits;
730 pZ /= (Double_t)nCombinedHits;
733 inverseBendingMomentum = 0;
734 if (TMath::Abs(pZ) > 0) {
735 bendingSlope = pY/pZ;
736 nonBendingSlope = pX/pZ;
738 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
739 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
740 inverseBendingMomentum *= trackParam1->GetCharge();
742 // set hit parameters
743 hit->SetUniqueID(trackParam1->GetClusterPtr()->GetUniqueID());
745 hit->SetErrXY(0.,0.);
747 // set new track parameters at new hit
748 AliMUONTrackParam trackParam;
749 trackParam.SetNonBendingCoor(x);
750 trackParam.SetBendingCoor(y);
752 trackParam.SetBendingSlope(bendingSlope);
753 trackParam.SetNonBendingSlope(nonBendingSlope);
754 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
756 // add track parameters at current hit to the track
757 newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
762 newTrack.SetUniqueID(track->GetUniqueID());
763 newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex());
764 fTrackRefStore->Add(newTrack);
771 //_____________________________________________________________________________
772 void AliMUONRecoCheck::MakeReconstructibleTracks(UInt_t requestedStationMask, Bool_t request2ChInSameSt45,
773 Bool_t hitInFrontOfPad)
775 /// Isolate the reconstructible tracks
776 if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
778 // need geometry transformer and segmentation to check if trackrefs are located in front of pad(s)
779 if (hitInFrontOfPad) {
780 if (!InitGeometryTransformer()) return;
781 if (!AliMpSegmentation::Instance(kFALSE) && !AliMUONCDB::LoadMapping(kTRUE)) return;
784 // create iterator on trackRef
785 TIter next(fTrackRefStore->CreateIterator());
787 // loop over trackRef and add reconstructible tracks to fRecoTrackRefStore
789 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
791 // check if the track is valid as it is
792 if (track->IsValid(requestedStationMask, request2ChInSameSt45)) {
794 if (hitInFrontOfPad) {
796 AliMUONTrack trackTmp(*track);
798 // loop over clusters and remove those which are not in front of pad(s)
799 AliMUONTrackParam *param = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->First());
801 AliMUONTrackParam *nextParam = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->After(param));
802 if (!IsHitInFrontOfPad(param)) trackTmp.RemoveTrackParamAtCluster(param);
806 // add the track if it is still valid
807 if (trackTmp.IsValid(requestedStationMask, request2ChInSameSt45)) fRecoTrackRefStore->Add(trackTmp);
812 fRecoTrackRefStore->Add(*track);
822 //_____________________________________________________________________________
823 AliMUONTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTrack &track, AliMUONVTrackStore &trackStore,
824 Int_t &nMatchClusters, Bool_t useLabel, Double_t sigmaCut)
826 /// Return the track from the store matched with the given track (or 0x0) and the number of matched clusters.
827 /// Matching is done by using the MC label of by comparing cluster/TrackRef positions according to the flag "useLabel".
828 /// WARNING: Who match who matters since the matching algorithm uses the *fraction* of matched clusters of the given track
830 AliMUONTrack *matchedTrack = 0x0;
833 if (useLabel) { // by using the MC label
835 // get the corresponding simulated track if any
836 Int_t label = track.GetMCLabel();
837 matchedTrack = (AliMUONTrack*) trackStore.FindObject(label);
839 // get the fraction of matched clusters
841 Int_t nClusters = track.GetNClusters();
842 for (Int_t iCl = 0; iCl < nClusters; iCl++)
843 if (((AliMUONTrackParam*) track.GetTrackParamAtCluster()->UncheckedAt(iCl))->GetClusterPtr()->GetMCLabel() == label)
847 } else { // by comparing cluster/TrackRef positions
849 // look for the corresponding simulated track if any
850 TIter next(trackStore.CreateIterator());
851 AliMUONTrack* track2;
852 while ( ( track2 = static_cast<AliMUONTrack*>(next()) ) ) {
854 // check compatibility
856 if (track.Match(*track2, sigmaCut, n)) {
857 matchedTrack = track2;
871 //_____________________________________________________________________________
872 AliMUONTriggerTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTriggerTrack &track, const AliMUONVTriggerTrackStore &triggerTrackStore,
875 /// Return the trigger track from the store matched with the given track (or 0x0).
876 /// Matching is done by comparing cluster/TrackRef positions.
878 AliMUONTriggerTrack *matchedTrack = 0x0;
880 // look for the corresponding simulated track if any
881 TIter next(triggerTrackStore.CreateIterator());
882 AliMUONTriggerTrack* track2;
883 while ( ( track2 = static_cast<AliMUONTriggerTrack*>(next()) ) ) {
884 // check compatibility
885 if (track.Match(*track2, sigmaCut)) {
886 matchedTrack = track2;
896 //____________________________________________________________________________
897 Bool_t AliMUONRecoCheck::InitTriggerResponse()
899 /// Initialize trigger electronics
900 /// for building of triggerable tracks from MC
902 if ( fTriggerElectronics ) return kTRUE;
904 if ( ! InitGeometryTransformer() ) return kFALSE;
906 if ( ! AliMpDDLStore::Instance(false) ) AliMpCDB::LoadDDLStore();
908 if ( ! InitCalibrationData() ) return kFALSE;
910 fTriggerElectronics = new AliMUONTriggerElectronics(fCalibrationData);
916 //____________________________________________________________________________
917 Bool_t AliMUONRecoCheck::InitCalibrationData()
919 /// Initialize calibration data
920 if ( ! fCalibrationData ) {
921 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
922 fCalibrationData = new AliMUONCalibrationData(AliCDBManager::Instance()->GetRun());
928 //____________________________________________________________________________
929 Bool_t AliMUONRecoCheck::InitGeometryTransformer()
931 /// Return geometry transformer
932 /// (create it if necessary)
933 if ( ! fGeometryTransformer ) {
935 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
937 if (!AliGeomManager::GetGeometry()) {
938 AliGeomManager::LoadGeometry();
939 if (!AliGeomManager::GetGeometry()) return kFALSE;
940 if (!AliGeomManager::ApplyAlignObjsFromCDB("MUON")) return kFALSE;
943 fGeometryTransformer = new AliMUONGeometryTransformer();
944 fGeometryTransformer->LoadGeometryData();
950 //________________________________________________________________________
951 Bool_t AliMUONRecoCheck::IsHitInFrontOfPad(AliMUONTrackParam *param) const
953 /// Return kTRUE if the hit is located in front of at least 1 pad
955 Int_t deId = param->GetClusterPtr()->GetDetElemId();
958 fGeometryTransformer->Global2Local(deId, param->GetNonBendingCoor(), param->GetBendingCoor(), param->GetZ(), xL, yL, zL);
960 const AliMpVSegmentation* seg1 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath0);
961 const AliMpVSegmentation* seg2 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath1);
962 if (!seg1 || !seg2) return kFALSE;
964 AliMpPad pad1 = seg1->PadByPosition(xL, yL, kFALSE);
965 AliMpPad pad2 = seg2->PadByPosition(xL, yL, kFALSE);
967 return (pad1.IsValid() || pad2.IsValid());